Re: [Gimp-user] image alignment/registration

So, by looking at the help text, it seems that you used all the options suited to focus stacking. At least in the help file I'm looking at, I think the only option "for" focus stacking is -m ? For lenses with focus breathing (i.e. almost all lenses) if you are changing the focus for each

Re: [Gimp-user] image alignment/registration

D'oh, the -d option! And -x -y -z sound promising as well. Not clear what -i does -- doesn't it always optimize the center shift? Or does "center shift" mean something more complex than simple x/y translation? Thanks, Pat! Pays to RTFM. The hugin toolkit continues to amaze me. That generates

Re: [Gimp-user] image alignment/registration

Could I have another link to the images to test something? On Mon, Mar 27, 2017 at 12:59 PM oneaty wrote: > >One last thought: if you are going to remove the barrel distortion in > >those images, you might try removing it before doing the image > >alignment... that might

Re: [Gimp-user] image alignment/registration

One last thought: if you are going to remove the barrel distortion in those images, you might try removing it before doing the image alignment... that might allow align_image_stack to work better... -c ___ gimp-user-list mailing list List address:

Re: [Gimp-user] image alignment/registration

Then I take the resulting output.tif file, open it in gimp, change the precision to 8 or 16bit, and remove the alpha channel (right-click the layer). This is the result of that process: http://caseyconnor.org/pub/image/aligned_and_medianed.tif It certainly looks very good! However, it's not

Re: [Gimp-user] image alignment/registration

Ok -- I believe PS is beating align_image_stack because the picture seems to have been taken with a very wide lens (i.e. short focal length) from close up... as a result, there is a lot of barrel distortion, and in addition there is a lot of camera movement between frames, so the result is

Re: [Gimp-user] image alignment/registration

I tried align_image_stack -a align -g 10 -t 5 *.tif Did you try with a lower-than-default -g? E.g. "-g 3"? If you want to upload the base .tif files somewhere, I can try to align them, so we can see if there is some strange difference between align_image_stack on our machines. -c

Re: [Gimp-user] image alignment/registration

Ah, ok. So what exactly goes wrong: one or two of the images is off-kilter? If you specify -g, try using something besides the default, as I'm not sure that using the default will change the behavior. (Meaning, not specifying -g probably results in the same thing as just "-g" -- the

Re: [Gimp-user] image alignment/registration

So, backing up a step: when you say align_image_stack doesn't work, what do you mean exactly? I assumed you meant that it did a poor job aligning the images, but I don't think the command lines you list there would even work to start the program, so I'm wondering now if you meant that it

Re: [Gimp-user] image alignment/registration

Did you try the -g option with align_image_stack? Or -t? I align hand-held images with align_image_stack and it works fine, even without those options... e.g. this one: https://www.flickr.com/photos/lacinato/32628735771/in/dateposted-public/ -c On 03/24/2017 12:58 PM, oneaty wrote: Per

Re: [Gimp-user] image alignment/registration

Align_image_stack is usually the best option other than possibly attempting it manually directly in Hugin. On Sat, Feb 4, 2017 at 8:57 PM Casey Connor wrote: > Hi - I was curious what the best overall image alignment plugin/method > in GIMP (or out of GIMP) was